205116459 has 4 divisors (see below), whose sum is σ = 273488616. Its totient is φ = 136744304.

The previous prime is 205116427. The next prime is 205116463. The reversal of 205116459 is 954611502.

205116459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205116459 - 2⁵ = 205116427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205116479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34186074 + ... + 34186079.

It is an arithmetic number, because the mean of its divisors is an integer number (68372154).

Almost surely, 2^205116459 is an apocalyptic number.

205116459 is a deficient number, since it is larger than the sum of its proper divisors (68372157).

205116459 is an equidigital number, since it uses as much as digits as its factorization.

205116459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68372156.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 205116459 is about 14321.8874105336. The cubic root of 205116459 is about 589.7484889875.

The spelling of 205116459 in words is "two hundred five million, one hundred sixteen thousand, four hundred fifty-nine".